Not for those who bought their coins at the beginning of 2018 
. I think margin trading and holding are the only opportunities for now for the investors. Because, if you bought some coins, before the market collapsed, you are automatically a long term investor now.
Holding cryptocurrencies are still profitable but only for those old coin like Bitcoin and Ethereum because those new coin right now is gradually no longer around or easily die. So I suggest if your going to hold make sure it has potential, so it will give you opportunity to earn. And as of now those old coin are really worth it because they have potential and listed as one of the best crypto, also it still here even many years passed.. I think margin trading and holding are the only opportunities for now for the investors. Because, if you bought some coins, before the market collapsed, you are automatically a long term investor now.